extra strong evolution is an advanced version of stacy lash extra strong eyelash extension glue featuring higher retention up to 8 weeks in the manufacturers laboratoryThis glue is designed solely for professional use by certified lash extension technicians fast dry time 12 seconds This eyelash adhesive has been designed for highly skilled lash artists with fast dry time adding to speed of eyelash extension procedures It works well in high humidity rh 5070 at 7074f 2123c lower fumes and less irritation new formula features lower level of fumes and chances of irritation while retaining short drying time having same flexibility and improved retention